William patzer



W. PATZBR. LAMP STANDARD.

(No Model.)

Patented Nov. 15,' 1887.

N. PETERS. Phommnagmphar, Washington, DJI,

42c posed of two tubes, the one carrying tlielamp llaman, rArns PATENT trice.,

WILLIAM PATZER,

OF MERIDEN, CONNECTICUT, ASSIGN TO THE MERIDEN BRONZE COMPANY, OF SAME PLACE.

LAMP-STANDARD.

SPECIFICATION forming part of Letters Patent No. 373,304, dated November 15, 1887.

Appiintion sied Aprn 1s, 18s?.

To aZZ whom, t may concern:

Be it known that I, VILLIAM PATZER, of. Meriden, in the county of New Haven and State of Connecticut, have invented a new Improvement in Lamp-Standards; and I do hereby declare thefollowing, when taken in connection with accompanying drawings and the let-k ters of reference marked thereon, to be a full, clear, and exact description of the same, and

ro which said drawings constitute partof this specification, and represent,in-

Figure 1,a side view of the lamp complete;

Fig. 2, a Vertical central section of the stand-d ard; Fig. 3,atransverse section ofthe standard.

rIhis invention relates to an improvement in that class of lamp-standards designed to rest upon the door and support the lamp, and adjustable to different elevations. The standards for this class of lamps are usually comsliding telescopically within the other tube, which is xed to the base. It is necessary that these lamps should be securely held at any point to which they nia-y be adjusted, and so that the lamp and the tube carrying it may not accidentally slide downward. While a simple sliding telescopio tube is readily understood,and so that any person desiring so to do may readily adjust the lamp if mechanism be 3o applied to lock the standard at any desired point,it is necessary that the person adjusting the lamp shall understand that mechanism, so that iu many cases such mechanism,while possessing many advautages,is undesirable. Frictional devices have been applied to standards of this character, so that the adjustable tube may be either forced .downward or drawn upward from the outer or stationary tube. It is to this latter class of standards that my inven- 4o tion particularly relates; and it has for its object the construction of a frictional device which is at all times sure tohold the lamp at any point to which it may be adj usted, yet permit its readjustment,and Without the employment of any directactingjmechanism.

To the base a vertical tube, A, is fixed and extends upward.l B is the adjustable tube which carries the lamp and slides down over Serial No. 235,140. (No model.)

the inner tube, A. The inner tube, A, is slit vertically,as at a,and is cireumferentially elas- 5o.

tic. Normally theinner tube, A, is ot'slightlylarger external diameter than the internal diameter ofthe lower part ofthe adjustable tube B. The tube B is forced down upon the inner tube, A, ciicugiferentially contracting the inner tube to some extent and so as to make frictional engagement with the inner tube; hence the tube B may be raised orlowered on the tube A, the frictioual cont-act between thetwo being sufficient to support the tube B,with the V6o lamp itcarries, at anydesirable point.

To the base a tube, C, is fixed, concentric withthe inner tube, A,and the adjustable tube B, but of larger internalV diameter than the adjustabletube B. AThis outer tube formsashield over the inner tube,so that the surface of that tube is not exposed, this tube C corresponding to the usual tixed portion ofthe lam p-standard, and is provided with the usual collar at the upper end as an ornamcnt,through which the 7;, adjustable tube works.

The elasticity of the inner tube, A, permits the adjustable tube to move freely, jet will hold it soiirmly that an accidental descent of the lamp and standard is practically impossible, and in adjusting the lamp to different elevations it is only necessary to raise the lamp or force it downward,according to the position required, no operative mechanism being necessary to secure the parts when adjusted.

In a lampvstandard, the combination of the tube A, fixed to the base, the said tube verticall yslit throughout its length and circumferentially-elastic, and the tube B, carrying the lamp 8 5 and surrounding the tube A, the external diameter of the tube A being normally larger than the internal diameter of the tube B, but contracted by the outer tube set thereon, substantially as described, and whereby the elas- 9o tieity of the said inner tube produces frictional contact between said inner and outer tubes. VILLlAM PATZER.

Vituesses:

E. A. MERRIMAN, H. B. ALLEN. 

